Hi Eric, I'm not sellacious support or anything, just another user, but is this when you use Joomla's inbuild installation function in the extensions, install part of the site?
If yes, I found a work around for me is to download the .zip file and upload it instead.
Sorry if this doesn't solve your issue, I wasn't sure from description what it was the issue was, but thought this might be it.
Cheers
Sam